JP4972729B2 - Chute, sheet feeding device, and sheet packaging machine - Google Patents

Description

  The present invention relates to a chute, a sheet supply device, and a sheet packaging machine used when a sheet to be packaged formed in a sheet shape is supplied into a packaging bag having at least an upper end opened.

  Conventionally, when filling and packaging powder in a packaging bag, for example, a packaging machine as shown in Patent Document 1 has been proposed. This packaging machine seals the packaging bag supply device for supplying the packaging bag with the upper end opened, the powder supply device for supplying the powder into the supplied packaging bag, and the packaging bag supplied with the powder. With a heat sealer.

  Here, the powder supply device includes a supply means for supplying powder into the packaging bag and a control device for controlling the operation of the supply means. The supply means further includes a hopper that temporarily stores the powder and a chute (former pipe) that supplies the powder supplied from the hopper into the packaging bag. The chute is formed in a cylindrical shape, and is configured to naturally drop the powder into a passage provided in the chute and guide it into the packaging bag.

On the other hand, when a sheet to be packaged is supplied to a packaging bag using a conventional chute, the chute is vertically inserted into a packaging bag that is arranged with at least the upper end opened. And the to-be-packaged sheet is dropped into the chute from the standing state in the same direction as the packaging bag.
JP-A-2005-59936

  However, since the conventional chute is for supplying a large amount of powder into the packaging bag at a time, the passage is formed to be quite wide. For this reason, a large space is formed between the inner wall surface of this passage and the periphery of the packaging sheet in an upright state. Therefore, when the sheet to be packaged is lightweight, the direction is changed due to large air resistance, and the sheet is supplied into the packaging bag as it is.

  As a result, the packaged sheet supplied in the packaging bag is bent at the time of sealing, so the finished package is not accepted as a product. Thus, the conventional chute cannot be used for packaging a lightweight sheet.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a chute, a sheet supply device, and a sheet packaging machine that can be used for packaging lightweight sheets.

  Therefore, as a result of intensive studies, the present inventors have adopted the following chute, sheet supply device, and sheet packaging machine in order to solve the above problems.

Shoot of the present invention:
In the chute of the present invention, the chute provided with a passage for allowing the sheet to be packaged to fall naturally is provided in the packaging bag having an open top at least, and has a groove penetrating vertically into the packaging bag. A chute body, and a cover provided on the chute body so as to cover the groove from the side, the passage and the groove constitute the passage, and the passage includes the periphery of the packaged sheet, A flow of air surrounding the packaged sheet, which is formed so as to open a gap between the inner wall surface of the passage and started to fall from the state of standing in the same direction as the packaging bag, drops the packaged sheet as the opposite direction, by suppressing the air resistance of the articles to be packaged sheet being dropped, the target package sheet in the same direction as the packaging bag while restricting the shaking in falling of the object to be packaged sheet It is characterized in that the guide until the packaging bag.

  In such a configuration, the sheet to be packaged is guided to the inside of the packaging bag by dropping in the passage while standing in the same direction as the packaging bag. Therefore, the chute can supply the packaging sheet into the packaging bag in the same direction as the packaging bag even if the packaging sheet is lightweight.

  Further, in the chute of the present invention, the passage is formed such that a gap is opened between the periphery of the packaged sheet that starts dropping from a state of standing in the same direction as the packaging bag and the inner wall surface. Therefore, when the sheet to be packaged is dropping in the passage, the air surrounding the sheet flows in the gap in the direction opposite to the sheet dropping direction. For this reason, since the to-be-wrapped sheet does not receive large air resistance, the shaking is regulated. Thereby, a to-be-packaged sheet is guided to the inside of a packaging bag in the same direction as a packaging bag. Therefore, the chute can supply the packaged sheet into the packaging bag in the same direction as the packaging bag while simplifying the configuration of the passage.

In such a configuration, a chute main body having a groove vertically penetrating into the packaging bag, and a cover provided on the chute main body so as to cover the groove from the side, the cover and the groove Since the passage is configured, when manufacturing the chute, it is possible to form the passage by processing the side surface instead of the inside of the chute body.

  In the chute of the present invention, the passage is configured to be visible from the side.

  In such a configuration, the packaged sheet falling through the passage is easily confirmed from the outside.

  The chute of the present invention is characterized in that at least a part of the wall portion of the peripheral wall forming the passage is formed of a transparent material, and the passage is configured to be visible from the outside by this transparent material.

  In such a configuration, the packaged sheet falling through the passage is easily confirmed from the outside with a simple configuration.

  In the chute of the present invention, the peripheral wall that forms the passage is provided with an opening that communicates the passage with the outside in a range in which the sheet to be packaged can fall, and the opening allows the passage to be formed. It is characterized by being visible from the side.

  In such a configuration, the packaged sheet falling through the passage is easily confirmed from the outside. Moreover, even if a to-be-packaged sheet is caught in a channel | path, the operator can remove a sheet | seat through an opening part.

  In the chute of the present invention, the cover is detachably provided on the chute body.

  In such a configuration, even if the packaged sheet is caught in the passage, the operator can remove the sheet by removing the cover. In addition, when one of the cover or the chute body becomes unusable, the operator only needs to replace the unusable one.

Sheet supply apparatus of the present invention:
The sheet supply apparatus of the present invention is characterized in that the chute of the present invention is provided in a sheet supply apparatus that supplies a sheet to be packaged in a packaging bag having an open upper end.

  In such a configuration, the sheet to be packaged is guided to the inside of the packaging bag by dropping in the passage while standing in the same direction as the packaging bag. Therefore, the sheet supply apparatus can supply the package sheet into the packaging bag in the same direction as the packaging bag even if the packaged sheet is lightweight.

  Further, in the sheet supply apparatus of the present invention, the wrapping sheet raw material conveying means for inserting and conveying the wrapping sheet raw material in a standing state in the chute passage, and a predetermined passage in the passage. The packaging sheet original fabric inserted to a length is cut in the width direction above the passage to form the packaging sheet.

  In such a configuration, the cut packaged sheet can be dropped from a state where it is partially inserted into the passage of the chute.

  Moreover, in the sheet supply apparatus of the present invention, the packaged sheet original fabric conveying means inserts the packaged sheet original fabric into the passage of the chute above the cutting position of the packaged sheet original fabric. The guide means comprises a member having a passage having the same configuration as the passage.

  In such a configuration, the guide means can be made simple and the original sheet to be packaged can be inserted into the passage of the chute.

  In the sheet feeding apparatus of the present invention, the member constituting the guide means is configured in the same manner as the chute provided together.

  In such a configuration, it is possible to reduce the number of parts in manufacturing.

  In the sheet supply apparatus of the present invention, a stopper is provided that temporarily closes the passage of the chute and temporarily stops the packaged sheet that has been dropped.

  In such a configuration, an increase in the dropping speed of the packaged sheet can be suppressed by temporarily stopping the packaged sheet being dropped by the stopper. Therefore, the sheet supply device further suppresses the air resistance against the packaging sheet that is falling compared to the case of a sheet feeding device that does not include a stopper, so that the packaging sheet is securely placed in the same direction as the packaging bag. It becomes possible to supply to.

Sheet wrapping machine of the present invention:
The sheet wrapping machine of the present invention is characterized in that the sheet wrapping machine for supplying and wrapping a sheet to be packaged in a packaging bag having at least an open upper end includes the sheet supply device of the present invention.

  In such a configuration, the sheet to be packaged is guided to the inside of the packaging bag by dropping in the passage while standing in the same direction as the packaging bag. Accordingly, the sheet packaging machine can supply the packaging sheet into the packaging bag in the same direction as the packaging bag even if the packaging sheet is light.

  In the sheet packaging machine of the present invention, the sheet packaging machine includes a packaging device for packaging the sheet to be packaged supplied from the sheet supply device, and the packaging device includes a pair of packaging materials constituting the packaging bag, A packaging material conveying means for conveying the sheet feeding device from the front and rear sides of the chute toward the chute, and conveying the sheet feeding device vertically downward while facing the lower portion of the chute; A pair of packaging materials that are joined together in order from the lower side, while the sheet feeding device is in a state in which the lower peripheral portions of the pair of packaging materials are joined together Thus, the sheet to be packaged is supplied between the pair of packaging materials.

  In this structure, the opening area of a packaging bag becomes large at the time of supply of a to-be-packaged sheet. For this reason, the sheet packaging machine can reliably supply the sheet to be packaged into the packaging bag in the same direction as the packaging bag.

  In the chute of the present invention, the passage is configured so that the sheet for packaging is supplied into the packaging bag in the same direction as the packaging bag even if the sheet for packaging is lightweight. Therefore, the packaged sheet supplied in the packaging bag is not folded when sealed, and the finished package is accepted as a product. Therefore, in the chute | shoot of this invention, it can be used also for packaging of a lightweight sheet | seat.

  Furthermore, in the chute of the present invention, the configuration of the passage is simplified, and the sheet to be packaged is supplied into the packaging bag in the same direction as the packaging bag. Therefore, in the chute of the present invention, the manufacturing cost can be suppressed.

  Further, in the chute of the present invention, the packaged sheet falling through the passage is easily confirmed from the outside. Therefore, in the chute of the present invention, the sheet removal processability can be improved.

  Furthermore, in the chute of the present invention, by using a transparent material, the packaged sheet falling through the passage can be easily confirmed from the outside with a simple configuration. Therefore, in the chute of the present invention, the sheet removal processability can be improved while suppressing the cost.

  Furthermore, in the chute of the present invention, the opening sheet is provided so that the packaged sheet falling in the passage can be easily confirmed from the outside. Furthermore, in the chute according to the present invention, even if the packaged sheet is caught in the passage, the operator can remove the sheet through the opening. Therefore, in the chute of the present invention, the sheet removal processability can be further enhanced.

  In addition, the chute of the present invention is constituted by a chute body and a cover. Thus, when the chute is manufactured, the passage can be formed by processing the side surface of the chute body. Therefore, in the chute of the present invention, manufacturing efficiency can be increased.

  Furthermore, in the chute of the present invention, the cover can be attached to and detached from the chute body. Therefore, even if the packaged sheet is caught in the passage, the operator can remove the sheet by removing the cover. Therefore, in the chute of the present invention, the sheet removal processability can be further enhanced. Furthermore, when one of the cover or the chute body becomes unusable, the chute according to the present invention only needs to be replaced when it becomes unusable, so that the running cost can be suppressed.

  Moreover, in the sheet supply apparatus of the present invention, even if the sheet for packaging is lightweight, the sheet for packaging is supplied into the packaging bag in the same direction as the packaging bag by using the chute of the present invention. I tried to do it. Therefore, the packaged sheet supplied in the packaging bag is not bent at the time of sealing, and the finished package is accepted as a product. Therefore, in the sheet supply apparatus of the present invention, it can be used for packaging a lightweight sheet. Furthermore, in the sheet supply apparatus of the present invention, other effects by the above-described chute of the present invention can also be obtained.

  Moreover, in the sheet supply apparatus of the present invention, the cut sheet to be packaged is dropped from a state where it is partially inserted into the path by cutting the original sheet to be packaged after being inserted into the path of the chute. . Therefore, in the sheet supply apparatus of the present invention, the sheet supply performance can be improved.

  Further, in the sheet supply apparatus of the present invention, the guide means for inserting the original sheet to be packaged into the chute passage is made simple by using a member having the same passage as the chute. Therefore, in the sheet supply apparatus of the present invention, the manufacturing cost can be suppressed.

  Furthermore, in the sheet supply apparatus of the present invention, the number of parts in manufacturing is reduced by configuring the members constituting the guide means in the same manner as the chute provided together. Therefore, in the sheet supply apparatus of the present invention, the manufacturing cost can be further suppressed.

  Moreover, in the sheet supply apparatus of the present invention, the fall of the falling speed of the sheet can be suppressed by temporarily stopping the sheet to be wrapped with the stopper. Therefore, the sheet supply apparatus of the present invention further suppresses the air resistance against the packaged sheet that is falling compared to the sheet supply apparatus that does not include a stopper, so that the packaged sheet is securely placed in the same direction as the packaging bag. It becomes possible to supply in a packaging bag. Therefore, in the sheet supply apparatus of the present invention, the sheet supply performance can be further improved.

  Further, in the sheet packaging machine of the present invention, by using the sheet feeding device provided with the chute of the present invention, even if the sheet for packaging is lightweight, the sheet for packaging is oriented in the same direction as the packaging bag. It was made to supply in a packaging bag. Therefore, the packaged sheet supplied in the packaging bag is not folded when sealed, and the finished package is accepted as a product. Therefore, in the sheet packaging machine of this invention, it can be used also for packaging of a lightweight sheet. Moreover, in the sheet packaging machine of this invention, the other effect by the chute | shoot and sheet supply apparatus of this invention mentioned above can also be acquired collectively.

  Furthermore, in the sheet wrapping machine of the present invention, the configuration is such that the sheet to be packaged is supplied into the packaging bag having the lower side bonded thereto, so that the opening area of the packaging bag during sheet supply is widened. For this reason, in the sheet packaging machine of this invention, it becomes possible to supply a to-be-packaged sheet into a packaging bag reliably in the same direction as a packaging bag. Therefore, in the sheet packaging machine of the present invention, the sheet supply property can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First embodiment:
FIG. 1 is a schematic diagram of a sheet packaging machine 1 showing a first embodiment of the present invention. The sheet packaging machine 1 is a four-row packaging machine that manufactures four packaging bodies 500 at a time. The package 500 includes a packaging bag 120 and a packaged sheet 152a. Furthermore, the packaging bag 120 is composed of a pair of packaging materials 102a and 102a. In the packaging machine 1, a pair of packaging material rolls 100 and 100 and four packaged sheet rolls 150 and 150 are used as packaging materials.

  Each of the packaging material rolls 100 and 100 includes a reel 101 and an original packaging material 102 wound around the reel 101. As shown in FIG. 2, the original packaging material 102 is formed by connecting the packaging materials 102 a in four horizontal rows and a plurality of horizontal four rows of packaging materials 102 a connected in length. .

  On the other hand, as shown in FIG. 1, the packaged sheet rolls 150 and 150 each include a reel 151 and a packaged sheet raw material 152 wound around the reel 151. And the said to-be-packaged sheet 152a is formed by cut | disconnecting this to-be-packaged sheet original fabric 152 to the width direction by predetermined length.

  A specific example of the packaged sheet 152a is an oxygen detection agent sheet. This oxygen detection agent sheet is formed by cutting the oxygen detection agent sheet in a width direction with a predetermined length. The raw oxygen detector sheet is produced by impregnating a belt-like paper sheet with an oxygen detection liquid and then drying it.

  The sheet packaging machine 1 includes a support body 2 installed on the floor F, a packaging machine body 3 coupled to the support body 2, and a control device 4 installed on the floor F adjacent to the rear part of the support body 2. And.

  The support body 2 includes a support body 21 installed on the floor F, a pair of packaging material roll support members 22 and 22 installed on the floor F before and after the support body 21, and an upper surface of the support body 21. It is provided with a pair of support members 23 and 23 for a packaged sheet roll provided.

  The support body 21 is formed in a table shape. First base portions 21 a and 21 a are coupled to the front and rear sides of the support body 21. Further, on the lower side in the support body 21, the second base portion 21 b is coupled to the left and right side portions of the support body 21. The base portion 21b is provided with a bonding position A for the packaging materials 102a and 102a. Further, a third base portion 21 c is coupled to the support body 21 on the upper side in the support body 21. The cutting position D of the original sheet for packaging 152 is set in the base portion 21c.

  The support members 22 and 22 for packaging material rolls are provided facing the front and rear sides of the support body 21 with the joining position A therebetween. Each of the support members 22 and 22 is configured to rotatably support the reel 101 of the packaging material roll 100 via a rotation shaft 221.

  On the other hand, the support members 23 for the sheet roll to be packaged are erected on the front and rear portions of the upper surface of the support body 21. Each of the support members 23 and 23 is configured to rotatably support the reels 151 of the two packaged sheet rolls 150 via the rotation shaft 231.

  The packaging machine main body 3 includes packaging means 5 that constitutes the lower half of the packaging machine main body 3 and packaged sheet supply means 6 that constitutes the upper half of the packaging machine main body 3.

  Further, the packaging unit 5 includes a packaging material conveying unit, a packaging material position detection sensor (not shown), a pair of heat sealers 7 and 7, and a slitter 8.

  The packaging material conveying means conveys the packaging material originals 102 and 102 (packaging materials 102a and 102a). The packaging material conveying means includes a pair of first guide rollers 51, 51, two sets of feeding rollers 52, 52, 52, 52, and a pair of second guides arranged in order from the reel 101 side. Rollers 53 and 53 and the heat sealers 7 and 7 are provided. And the conveyance line of the packaging material original fabrics 102 and 102 is comprised by these members.

  The first guide rollers 51 and 51 are provided facing the front and rear in the first base portions 21a and 21a. Further, the first guide rollers 51 and 51 are provided between the reel 101 and the joining position A, respectively. Moreover, each guide roller 51 is comprised so that it may rotate to the conveyance direction B of the packaging material original fabric 102, and its reverse direction (front-back direction). Thereby, the 1st guide rollers 51 and 51 are comprised so that the packaging material original fabric 102 may be conveyed horizontally between the reels 101, respectively.

  Further, the feeding rollers 52, 52, 52, 52 are provided on the first base portions 21a, 21a so as to face each other in the front-rear direction above the first guide rollers 51, 51. Each feeding roller 52, 52 is provided with a motor, and is configured to rotate in the transport direction B while sandwiching the original packaging material 102 from above and below.

  Thereby, each delivery roller 52 and 52 is comprised so that the packaging material original fabric 102 may be delivered from the reel 101. FIG. Further, each of the feeding rollers 52 and 52 is configured to transport the fed packaging material 102 upward from the first guide roller 51 and further to the second guide roller 53.

  Further, the second guide rollers 53 and 53 are provided in the second base portion 21b at the same height position as the feeding rollers 52 and 52 so as to face each other in the front-rear direction. Each guide roller 53 is configured to rotate in the transport direction B and the opposite direction. Thereby, the 2nd guide rollers 53 and 53 are comprised so that the packaging material original fabric 102 may be conveyed horizontally between the feeding rollers 52 and 52, respectively.

  In addition, the heat sealers 7 and 7 are provided in the second base portion 21b so as to be opposed to each other in the vertical direction below the second guide rollers 53 and 53. Further, the heat sealers 7 and 7 are configured to be driven to rotate in the transport direction B while the peripheral portions 102b and 102b of the original packaging material 102 and 102 are thermocompression bonded at the joining position A.

  As a result, the heat sealers 7 and 7 convey the packaging material fabrics 102 and 102 vertically downward while facing each other with the second guide rollers 53 and 53 as a boundary, and the peripheral portions of the packaging materials 102a and 102a. 102b and 102b are configured to be thermocompression bonded in order from the lower side.

  The slitter 8 is provided below the heat sealers 7 and 7 in the second base portion 21b. And this slitter 8 is comprised so that the four package bodies 500 manufactured may be parted.

  The packaging material position detection sensor is configured to detect the positions of the packaging materials 102a and 102a being conveyed.

  On the other hand, the packaged sheet supply means 6 includes a chute 61, a packaged sheet original fabric conveying means, a cutting means, and a stopper 64.

  The chute 61 is provided below the cutting position D and inserted between the second guide rollers 53 and 53 (between the original packaging material 102 and 102). As shown in FIG. 2, the chute 61 is formed to extend vertically between the second guide rollers 53 and 53. The chute 61 includes a chute main body 611 and five covers 612 to 614 provided on the front surface of the chute main body 611.

  The chute body 611 is made of metal and is formed to extend vertically between the second guide rollers 53 and 53. Also, as shown in FIG. 3, four grooves 611b are provided side by side on the front surface 611a side of the chute body 611.

  Each groove 611b is formed to vertically penetrate the front surface 611a side of the chute body 611 toward a predetermined position (between the packaging materials 102a and 102a) between the second guide rollers 53 and 53. Further, each groove 611b is formed in a U-shape so that the original sheet 152 (or the original sheet 152a) passes in a state where it stands up in the same direction as the packaging materials 102a and 102. In addition, a plurality of screw holes 611c are provided in parallel in the vertical and horizontal directions in portions other than the groove 611b of the front surface 611a of the chute body 611.

  On the other hand, each of the covers 612 to 614 is made of acrylic. And as shown in FIG. 2, each cover 612-614 is formed so that it may extend perpendicularly | vertically toward between the 2nd guide rollers 53 and 53. As shown in FIG.

  Upper and lower portions 612a and 612a of the rightmost cover 612 are formed so as to cover the right side of the rightmost groove 611b of the chute body 611 from the front. A cutout 615 is provided on the left side of the intermediate portion of the cover 612. The notch 615 is formed in a U shape so that the groove 611b is completely exposed.

  The upper and lower portions 612a and 612a are provided with screw holes 616 at positions corresponding to the rightmost screw hole 611c of the chute body 611. The screw hole 616 is formed in the same shape as the screw hole 611c. Screws 617 are screwed into both screw holes 611c and 616. Therefore, the cover 612 is detachably provided on the chute body 611 by both screw holes 611 c and 616 and the screw 617.

  On the other hand, the upper and lower portions 613a and 613a of the leftmost cover 613 are formed so as to cover the left side of the leftmost groove 611b of the chute body 611 from the front. Further, the cover 613 is provided with a notch 615 on the right side of the intermediate portion. The notch 615 is formed in a U shape so that the groove 611b is completely exposed.

  The upper and lower portions 613a and 613a are provided with screw holes 616 at positions corresponding to the leftmost screw hole 611c of the chute body 611. Screws 617 are screwed into both screw holes 611c and 616. Accordingly, the cover 613 is detachably provided on the chute body 611.

  The upper and lower portions 614a and 614a of the remaining three covers 614 are formed so as to cover the right and left sides of the adjacent grooves 611b and 611b of the chute body 611 from the front. In addition, a pair of left and right cutouts 615 and 615 are provided at an intermediate portion of each cover 614. Each notch 615 is formed in a U shape so that the corresponding groove 611b is completely exposed.

  Further, screw holes 616 are provided in the upper and lower portions 614a and 614a at positions corresponding to the remaining screw holes 611c of the chute body 611, respectively. Screws 617 are screwed into both screw holes 611c and 616. Accordingly, the three covers 614 are detachably provided on the chute body 611, respectively.

  And each cover 612-614 has covered a part of each groove | channel 611b of the chute | shoot main body 611 from the front, Therefore In the chute | shoot 61, these passages 612-614 and the groove | channel 611b have four channel | paths 618. Is formed.

  As shown in FIG. 1, each passage 618 is formed to extend vertically toward a predetermined position (between the packaging materials 102 a and 102 a) between the second guide rollers 53 and 53. Further, as shown in FIG. 3, the cross section of each passage 618 is formed in the same rectangular shape as the cross section of the original sheet 152 to be wrapped up in the same direction as the packaging materials 102 a and 102.

  Each passage 618 is formed such that a gap 618a is opened between the periphery of the original sheet 152 and the inner wall surface 618b. In other words, each passage 618 is formed such that a gap 618a is opened between the inner periphery 618b and the periphery of the packaged sheet 152a that starts to fall from the state of standing in the same direction as the packaging materials 102a and 102. .

  Each cover 612 to 614 exposes at least a part of each groove 611 b, so that an opening 619 is formed between the covers 612 to 614 in the chute 61. Further, the middle portion 619a of the opening 619 is formed by a notch 615 so as to be larger on the left and right than the upper and lower portions 619b and 619b of the opening 619.

  On the other hand, the said packaged sheet original fabric conveyance means is provided above the cutting position D (refer FIG. 1). As shown in FIG. 1, the packaged sheet original fabric conveying means includes four guide rollers 621 provided above the support body 21 and sheet inserting means provided on the third base portion 21c. ing.

  The four guide rollers 621 are arranged at two positions higher than the packaged sheet roll 150 at both of the packaged sheet roll support members 23, 23 via separate support members (not shown). Separately provided. Each guide roller 621 is configured to rotate in the transport direction C and in the opposite direction. Accordingly, each guide roller 621 is configured to convey the packaged sheet raw material 152 taken out from the reel 151 toward the sheet inserting means.

  On the other hand, the sheet inserting means includes a lower guide member 67 provided above the cutting position D, a pair of feed rollers 65 and 65 provided above the lower guide member 67, and a feed roller 65 and 65. And an upper guide member 66 provided above.

  The upper guide member 66 and the lower guide member 67 constitute the guide means of the present invention. The two guide members 66 and 67, the feeding rollers 65 and 65, and the four guide rollers 621 constitute a conveyance line for the original sheet 152 to be packaged.

  As shown in FIG. 2, the feeding rollers 65 and 65 are each configured to be driven to rotate in the transport direction C while sandwiching the four sheet materials 152 to be wrapped from the front and rear sides. Accordingly, the feeding rollers 65 and 65 are configured to feed the packaged sheet original fabric 152 from the reel 151 and convey it downward.

  The lower guide member 67 is formed to extend vertically toward the chute 61. The lower guide member 67 includes a guide member main body 671 and five covers 672 to 674 provided on the front surface of the guide member main body 671.

  The guide member main body 671 is made of metal and is formed so as to extend vertically toward the chute main body 611. As shown in FIG. 4, four grooves 671 b are provided side by side on the front surface 671 a side of the guide member main body 671.

  Each groove 671b is formed to vertically penetrate the front surface 671a side of the guide member main body 671 toward each groove 611b of the chute 61. Further, each groove 671b is formed in a U-shape so that the original sheet 152 to be wrapped passes in a state where it rises in the same direction as the packaging materials 102a and 102a. In addition, a plurality of screw holes 611c are provided in parallel in the vertical and horizontal directions at portions other than the groove 671b of the front surface 671a of the chute body 611.

  On the other hand, each cover 672-674 is made of acrylic. And as shown in FIG. 2, each cover 672-374 is each formed in the flat form so that it may extend perpendicular | vertical toward each cover 612-614 of the chute | shoot 61, respectively.

  As shown in FIG. 4, the rightmost cover 672 is formed so as to cover the right side of the rightmost groove 671b of the guide member main body 671 from the front. Further, the cover 672 is provided with a screw hole 616 at a position corresponding to the rightmost screw hole 611c of the guide member main body 671. Screws 617 are screwed into both screw holes 611c and 616. Thus, the cover 672 is detachably provided on the guide member main body 671.

  On the other hand, the leftmost cover 673 is formed so as to cover the left side of the leftmost groove 671b of the guide member main body 671 from the front. Further, the cover 673 is provided with a screw hole 616 at a position corresponding to the leftmost screw hole 611c of the guide member main body 671. Screws 617 are screwed into both screw holes 611c and 616. Accordingly, the cover 673 is detachably provided on the guide member main body 671.

  The remaining three covers 674 are formed so as to cover the right and left sides of the adjacent grooves 671b and 671b of the guide member main body 671 from the front. Further, the three covers 674 are provided with screw holes 616 at positions corresponding to the remaining screw holes 611c of the guide member main body 671, respectively. Screws 617 are screwed into both screw holes 611c and 616. Thus, the cover 674 is detachably provided on the guide member main body 671.

  Moreover, each cover 672-674 has covered a part of each groove | channel 611b of the guide member main body 671 from the front. Thus, four passages 678 are formed in the lower guide member 67 by these covers 672 to 674 and the groove 611b.

  As shown in FIG. 1, each passage 678 is formed to extend vertically toward each passage 618 of the chute 61. Further, as shown in comparison between FIG. 3 and FIG. 4, the cross section of each passage 678 is formed to be the same as the cross section of each passage 618 of the chute 61. Therefore, each passage 678 is formed such that a gap 678a is opened between the periphery of the original sheet 152 to be wrapped and the inner wall surface 678b standing in the same direction as the packaging materials 102a and 102a. The gap 678a has the same size as the gap 618a of the chute 61.

  Each cover 672 to 674 exposes at least a part of each groove 611 b of the guide member main body 671, so that an opening 679 is formed between the covers 672 to 674 in the lower guide member 67. Has been.

  On the other hand, as shown in FIG. 2, the upper guide member 66 is formed to extend vertically toward the lower guide member 67. The upper guide member 66 includes a guide member main body 661 and five covers 662 to 664 provided on the front surface of the guide member 661.

  The guide member main body 661 is made of metal, and its upper end portion 6610 is formed in a triangular prism shape. The size of the upper end portion 6610 is set to be smaller than the length of the general portion 6611 other than the upper end portion 6010. In addition, the upper end portion 6610 is provided with a slope 6610a. The slope 6610a is formed to extend obliquely upward from the front to the rear of the upper end portion 6610. A space 6612 is formed between the upper end portion 6610 and the covers 662 to 664, and the space 6612 is opened upward.

  On the other hand, the general portion 6611 is formed to extend vertically toward the guide member main body 671 of the lower guide member 67. As shown in FIG. 4, four grooves 661 b are provided side by side on the front surface 661 a side of the general portion 6611.

  Each groove 661b is formed to vertically penetrate the front surface 661a side of the general portion 6611 toward each groove 671b of the lower guide member 67. Further, each groove 661b is formed in a U shape so that the original sheet 152 to be wrapped passes in a state where it is erected in the same direction as the packaging materials 102a and 102a. In addition, a plurality of screw holes 611c are provided in parallel in the vertical and horizontal directions in portions other than the groove 661b of the front surface 661a of the general portion 6611.

  On the other hand, each of the covers 662 to 664 is made of acrylic. As shown in FIG. 2, the covers 662 to 664 are formed so as to extend vertically toward the covers 672 to 674 of the lower guide member 67, respectively.

  As shown in FIG. 4, the rightmost cover 662 is formed so as to cover the right side of the rightmost groove 661b of the guide member main body 661 from the front. Further, the cover 662 is provided with a screw hole 616 at a position corresponding to the rightmost screw hole 611c of the guide member main body 661. Screws 617 are screwed into both screw holes 611c and 616. Accordingly, the cover 612 is detachably provided on the guide member main body 661.

  On the other hand, the leftmost cover 663 is formed so as to cover the left side of the leftmost groove 661b of the guide member main body 661 from the front. Further, the cover 663 is provided with a screw hole 616 at a position corresponding to the leftmost screw hole 611c of the guide member main body 661. Screws 617 are screwed into both screw holes 611c and 616. Accordingly, the cover 613 is detachably provided on the guide member main body 661.

  The remaining three covers 664 are formed so as to cover the right and left sides of the adjacent grooves 661b and 661b of the guide member main body 661 from the front. Furthermore, each cover 664 is provided with screw holes 616 at positions corresponding to the remaining screw holes 611c of the guide member main body 661. Screws 617 are screwed into both screw holes 611c and 616. Accordingly, the cover 664 is detachably provided on the guide member main body 661.

  Each cover 662 to 664 covers a part of each groove 611b of the guide member main body 661 from the front, so that the upper guide member 66 has four covers 662 to 664 and each groove 611b. The passage 668 is formed.

  As shown in FIG. 1, each passage 668 is formed to extend vertically toward the passage 678 of the lower guide member 67. Further, the cross section of each passage 668 is formed to be the same as the cross section of the passage 678 as shown in FIG. Accordingly, each passage 668 is formed such that a gap 668a is opened between the inner periphery 668b and the periphery of the original sheet 152 to be wrapped up in the same direction as the packaging materials 102a and 102a. The gap 668a has the same size as the gap 618a of the chute 61.

  Further, each cover 662 to 664 exposes at least a part of each groove 611b of the guide member main body 661, so that an opening 669 is formed between the covers 662 to 664 in the upper guide member 66. ing.

  On the other hand, the cutting means cuts the original sheet 152 to be packaged inserted in the passage 618 of the chute 61 in the width direction to form the packaged sheet 152a. As shown in FIGS. 1 and 2, the cutting means is composed of a pair of cutters 631 and 632 facing the front and rear with a cutting position D in between.

  The front cutter 631 is fixed at a position away from the cutting position D by a predetermined distance. Further, the blade 631a of the front cutter 631 is formed parallel to the cutting position D. On the other hand, the rear cutter 632 is configured to be movable back and forth (in the direction of arrow S in FIGS. 1 and 2) so as to overlap the blade 631a of the front cutter 631. Further, the blade 632 a of the rear cutter 632 is formed obliquely with respect to the cutting position D.

  Thus, the cutting means moves the front cutter 152 to the cutting position D by moving the rear cutter 632 forward while sandwiching the four target sheets 152 with the front cutter 631. It is configured to cut together.

  On the other hand, the stopper 64 temporarily stops the packaged sheet 152a falling through the passage 618 of the chute 61. As shown in FIG. 2, the stopper 64 includes a rotating shaft 641 disposed in front of the chute 61, four stopper bodies 643 provided below the rotating shaft 641, and a spring coupled to the rotating shaft 641. 642 (biasing means) and driving means for driving the rotating shaft 641 are provided.

  The rotating shaft 641 is formed so as to extend longer to the left and right than the chute 61. The rotating shaft 641 is disposed immediately above the intermediate portion 619a of the four openings 619 of the chute 61, and is provided on the third base portion 21c so as to rotate back and forth.

  Further, as shown in FIG. 3, each stopper main body 643 is arranged in front of the opening 619 in parallel with the chute 61 at the normal position. Each stopper main body 643 is formed so as to close the passage 618 through the opening 619a and stop the falling packaging sheet 152a as it is as the rotating shaft 641 rotates rearward. ing.

  One end of the spring 642 is fixed to one end 641a of the rotating shaft 641, and the other end is fixed to the rear upper part of the one end 641a in the third base portion 21c. The spring 642 urges the rotating shaft 641 to always rotate forward (the direction opposite to the direction in which the stopper main body 643 blocks the passage 618). The biasing means may be other than the spring 642 as long as it always biases the rotating shaft 641 forward.

  The driving means is configured to rotate the rotating shaft 641 rearward. Accordingly, the stopper 64 is configured to stop the packaged sheet 152a that is falling by closing the passage 618 of the chute 61 by turning the stopper body 643 rearward from the normal position by turning on the driving means. Yes. Further, the stopper 64 is configured such that when the driving means is turned off, the stopper body 643 is rotated forward by the urging force of the spring 642 to open the passage 618, thereby dropping the packaged sheet 152a that has been stopped. ing.

  The control device 4 includes two sets of feeding rollers 52 and 52, heat sealers 7 and 7, four guide rollers 621, feeding rollers 65 and 65, a rear cutter 632, a stopper 64, The slitter 8 is connected to the sensor and the like, and is configured to control these operations. And the packaging apparatus 50 of this invention is comprised from this control apparatus 4 and the said packaging means 5. FIG. Further, the sheet supply device 60 of the present invention is composed of the control device 4 and the packaged sheet supply means 6.

  In this configuration, the procedure for packaging the sheet to be packaged 152a will be described. First, the operator pulls out the original packaging materials 102 and 102 from both the packaging material rolls 100 and 100, respectively. Next, the operator passes the drawn packaging material 102 and 102 in the order of the first guide roller 51, the feeding rollers 52 and 52, and the second guide roller 53, respectively. After combining 102, 102, set between the heat sealers 7, 7.

  On the other hand, the operator pulls out the original sheet 152 to be wrapped from the four rolls 150 to be wrapped. Next, the operator sets the four unwrapped sheet original fabrics 152 pulled out through the guide rollers 621 and 621, the upper guide member 66, the feeding rollers 65 and 65, and the lower guide member 67 in this order.

  Next, the worker turns on the control device 4. Then, as shown in FIG. 5A, the feeding rollers 52 and 52, the heat sealers 7 and 7, and the slitter 8 are driven. As a result, the packaging materials 102 a and 102 a are conveyed to the second guide rollers 53 and 53 via the first guide roller 51 and the feeding rollers 52 and 52. Furthermore, the packaging materials 102a and 102a are conveyed vertically downward while facing each other with the second guide rollers 53 and 53 as a boundary.

  Further, when the control device 4 is turned on, the feeding rollers 65 and 65 of the packaged sheet original fabric conveying means are driven. Accordingly, the four original sheets 152 to be packaged are conveyed in the order of the guide roller 621, the upper guide member 66, the feeding rollers 65 and 65, and the lower guide member 67 and inserted into the passage 618 of the chute 61.

  As shown in FIG. 5B, when the packaging materials 102a and 102a being conveyed reach the first predetermined position E, the stopper 64 is driven. As a result, the stopper main body 643 rotates backward from the normal position to block the passage 618 of the chute 61.

  When the stopper 64 closes the passage 618 of the chute 61 and the packaging materials 102a and 102a reach the second predetermined position F as shown in FIG. 5C, the rear cutter 632 is in the normal position. To the cutting position D. Accordingly, the front and rear cutters 631 and 632 cut the packaged sheet raw material 152 inserted into the passage 618 up to a predetermined length. As a result, a packaged sheet 152a is formed. The packaged sheet 152 a naturally falls through the passage 618 of the chute 61 and is stopped by the stopper 64.

  Then, as shown in FIG. 5D, when the packaging materials 102a and 102a reach the joining position A, the rear cutter 632 is returned from the cutting position D to the normal position. At the same time, the driving of the stopper 64 stops. Accordingly, the stopper main body 643 is rotated forward by the urging force of the spring 642 (see FIG. 2) to return to the normal position. As a result, the wrapping sheet 152a is released from the stopped state and begins to fall again through the passage 618, and is supplied between the packaging materials 102a and 102a to which the lower peripheral edge portion 102b is bonded.

  Next, the wrapping materials 102a and 102a supplied with the sheet 152a to be packaged are all joined together by the heat sealers 7 and 7 while the peripheral portions 102b and 102b are joined together. Thereby, the packaging body 500 is manufactured in a state of being connected in four horizontal rows (see FIG. 2). Next, the connection parts of these packaging bodies 500 are divided by the slitter 8. Thereby, the packaging body 500 is completed in the state connected to the vertical line.

  Here, in the sheet packaging machine 1 according to the present embodiment, as shown in FIG. 3, the passage 618 of the chute 61 is positioned around the packaged sheet 152 a in a state of standing in the same direction as the packaging materials 120 a and 102 a. A gap 618a is formed between the inner wall surface 618b.

  Thereby, when the packaged sheet 152a falls in the passage 618, as shown in FIG. 6, the air G surrounding the packaged sheet 152a becomes a gap 618a in the direction opposite to the dropping direction H of the packaged sheet 152a. To flow. For this reason, the flow of the air G is not disturbed. Therefore, even if the packaged sheet 152a is light, the packaged sheet 152a is not greatly subjected to air resistance during dropping, so that shaking is restricted. As a result, the packaged sheet 152a is guided to the space between the packaging materials 102a and 102a by dropping down the passage 618 in a state where the packaging sheet 152a stands in the same direction as the packaging materials 102a and 102a.

  As described above, in the sheet packaging machine 1 of the present embodiment, even if the packaged sheet 152a is light, the packaged sheet 152a can be supplied into the packaging bag 120 in the same direction as the packaging bag 120. It becomes possible. Thus, the packaged sheet 152a is not bent at the time of sealing, and thus the completed package 500 can be used as a product. Therefore, in the sheet packaging machine 1 of the present embodiment, it can be used for packaging the lightweight sheet 152a. Furthermore, in this sheet packaging machine 1, since the passage 618 of the chute 61 is simply configured, the manufacturing cost can be suppressed.

  Moreover, in the sheet packaging machine 1 of this Embodiment, the to-be-packaged sheet 152a was supplied in the packaging bag 120 by which the lower side was united. Thereby, the opening area of the packaging bag 120 at the time of supply of the to-be-packaged sheet 152a becomes large. Therefore, the sheet packaging machine 1 can reliably supply the packaged sheet 152 a into the packaging bag 120 in the same direction as the packaging bag 120. Therefore, in the sheet packaging machine 1 of the present embodiment, it is possible to improve the supply property of the sheet 152a.

  Further, in the sheet packaging machine 1 of the present embodiment, the chute 61 is constituted by the chute body 611 and the cover 612. Thus, when the chute 61 is manufactured, the channel 618 can be formed by processing the side surface 611a side of the chute body 611 to form the groove 611b. Therefore, in the sheet packaging machine 1 according to the present embodiment, the work of forming the passage 618 is facilitated, so that the manufacturing efficiency can be increased.

  Further, in the sheet packaging machine 1 of the present embodiment, by providing the opening 619b in the chute 61, the passage 618 can be viewed from the front through the opening 619b. Therefore, the operator can easily confirm the packaged sheet 152a falling from the passage 618 from the outside. Furthermore, in the sheet packaging machine 1 of the present embodiment, since the cover 612 is made of acrylic, the visible range of the passage 618 is widened, so that the visibility of the packaged sheet 152a falling through the passage 618 is increased. Can do.

  And when the to-be-packaged sheet 152a is caught in the channel | path 618 because the chute | shoot 61 shakes by the vibration etc. which generate | occur | produce at the work site, an operator can remove the sheet | seat 152a through the opening part 619. Become. Therefore, in the sheet packaging machine 1 of the present embodiment, the removal processability of the sheet 152a can be improved.

  Note that the opening provided in the chute 61 is limited to the opening 619 as in the present embodiment if the installation position of the opening and the size of the opening are set within a range in which the packaged sheet 152a can fall. You don't have to.

  Moreover, in the sheet packaging machine 1 of this Embodiment, the five covers 612-614 were provided with respect to the chute | shoot main body 611 so that attachment or detachment was possible. Thereby, when the to-be-wrapped sheet 152a is caught in the passage 618, the operator removes the cover constituting the passage 618 and removes the to-be-wrapped sheet 152a caught in the passage 618. Therefore, even when the operator cannot remove the packaged sheet 152a through the opening 619, the worker can remove the packaged sheet 152a by removing the cover. Therefore, in the sheet packaging machine 1 of the present embodiment, the removal processability of the sheet 152a can be further enhanced.

  In addition, when at least one of these covers 612 to 614 or one of the chute main bodies 611 becomes unusable due to breakage or the like, the worker can replace the cover 612 from the chute main body 611 without replacing all of them. All 614 may be removed and replaced, or only the cover that has become unusable may be removed and replaced. Therefore, in the sheet packaging machine 1 of this Embodiment, a running cost can be held down.

  On the other hand, in the sheet packaging machine 1 according to the present embodiment, the original sheet 152 to be wrapped is placed in the passage 618 of the chute 61 in a state where the upper and lower guide members 66 and 67 stand up in the same direction as the packaging materials 102a and 102a. It was made to insert. Thereby, the sheet packaging machine 1 can increase the cutting efficiency of the packaged sheet original fabric 152. Therefore, in the sheet packaging machine 1 of the present embodiment, it is possible to improve the supply property of the sheet 152a.

  Further, as shown in FIG. 2, the upper guide member 66 has a space 6612 that is open between the upper end portion 6610 and the covers 662 to 664. The space 6612 communicates with the passage 668 and is formed wider than the passage 668. Therefore, since the packaged sheet original fabric 152 is easily inserted into the passage 668, the transportability of the packaged sheet original fabric 152 is improved. Therefore, in the sheet packaging machine 1 of the present embodiment, it is possible to further enhance the supply property of the sheet 152a.

  Further, the upper guide member 66 has a passage 668 that is the same as the passage 618 of the chute 61 and an opening 669 that is the same as the opening 619 b of the chute 61. On the other hand, the lower guide member 67 has a passage 678 that is the same as the passage 618 of the chute 61 and an opening 679 that is the same as the opening 619 b of the chute 61. Therefore, both guide members 66 and 67 are configured in the same manner as the chute 61. For this reason, when manufacturing the sheet packaging machine 1, the number of parts can be reduced. Therefore, in the sheet packaging machine 1 of this Embodiment, manufacturing cost can be held down.

  In addition, when the packaged sheet original fabric 152 is caught in the passages 668 and 678 of both guide members 66 and 67, the operator removes the packaged sheet original fabric 152 by removing the cover from the guide member main body. It becomes possible to remove. Therefore, in the sheet packaging machine 1 of this Embodiment, the removal processability of the to-be-packaged sheet original fabric 152 can be improved. In addition, when one of the cover or the guide member main body becomes unusable due to damage or the like, the operator may remove and replace the unusable one. Therefore, in the sheet packaging machine 1 of the present embodiment, the running cost can be further suppressed.

  The guide means is not necessarily limited to the guide members 66 and 67 described in the present embodiment. However, if the guide means is composed of at least a member having the passage 618, the structure can be simplified as compared with the case where the guide means is a roller.

  Further, in the sheet packaging machine 1 of the present embodiment, as shown in FIG. 5, the material to be wrapped 152 is inserted into the passage 618 of the chute 61 to a predetermined length and then cut. Therefore, since the packaged sheet 152a starts to fall from a state where it is partially inserted into the passage 618, the packaged sheet 152a can be reliably supplied into the packaging bag 120. Therefore, in the sheet packaging machine 1 of the present embodiment, it is possible to improve the supply property of the sheet 152a.

  Furthermore, in the sheet packaging machine 1 of the present embodiment, the falling sheet 152a to be packaged is temporarily stopped by the stopper 64 and then dropped again. Thereby, the raise of the fall speed of the to-be-packaged sheet 152a is suppressed. Therefore, since this packaging machine 1 suppresses the air resistance against the packaging sheet 152a that is falling compared to the packaging machine without the stopper 64, the packaging sheet 152a is securely packaged in the same direction as the packaging bag 120. It can be supplied into the bag 120. Therefore, in the sheet packaging machine 1 of the present embodiment, it is possible to improve the supply property of the sheet 152a.

  Further, in the case of a packaging machine that cuts a large number of original sheets 152 to be packaged side by side from one side as in the case of the sheet packaging machine 1 of the present embodiment, the start of dropping of the packaging sheet 152a occurs on both sides. It is different. For this reason, in the conventional sheet packaging machine, the to-be-packaged sheet 152a cannot be supplied well between the packaging materials 102a and 102a. Therefore, in the sheet packaging machine 1 according to the present embodiment, the stopper 64 is driven to temporarily stop the four sheets to be packaged 152a that are falling, and then release them. Thereby, the to-be-packaged sheet 152a can start dropping simultaneously. Therefore, in the sheet packaging machine 1 of the present embodiment, it is possible to improve the supply property of the sheet 152a even in the case of the multi-row type.

Second embodiment:
FIG. 7 is a perspective view of a main part of a sheet packaging machine 300 showing the second embodiment of the present invention. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and different parts will be mainly described. The sheet packaging machine 300 is a two-row packaging machine that produces two packaging bodies 500 at a time. And this sheet packaging machine 300 is provided with the sheet supply apparatus 360 and the packaging apparatus 350 similarly to 1st Embodiment.

  Similar to the first embodiment, the packaging device 350 detects the position of the packaging material conveying means for conveying the packaging material original fabrics 302 and 302 (the packaging materials 102a and 102a) and the packaging materials 102a and 102a being conveyed. A packaging material position detection sensor, a two-row compatible heat sealer 70, 70, a two-row slitter (not shown), and a control device (not shown).

  On the other hand, the sheet supply apparatus 360 includes a packaged sheet supply unit and a control device (not shown), as in the first embodiment. And the to-be-packaged sheet supply means is equipped with the chute | shoot 31, the to-be-packaged sheet original fabric conveyance means, and the cutting | disconnection means (cutter 631,632).

  The chute 31 is provided below the cutting position D (see FIG. 8) and inserted between the second guide rollers 53, 53 (between the packaging material fabrics 102, 102). The chute 31 is formed so as to extend vertically between the second guide rollers 53 and 53. The chute 31 includes a chute body 311 and a cover 312 detachably provided on the front surface 311a of the chute body 311.

  The chute body 311 is made of metal. The chute body 311 is formed so as to extend vertically between the second guide rollers 53 and 53. Then, two grooves 611b are provided side by side on the front surface 311a side of the chute body 311.

  The cover 312 is made of acrylic. The cover 312 is formed in a flat plate shape so as to cover all the two grooves 611b of the chute body 311 from the front. As a result, the chute 31 is formed with two passages 618 that are the same as those in the first embodiment, by the cover 312 and the two grooves 611b.

  On the other hand, as in the first embodiment, the packaged sheet original fabric conveying means includes four guide rollers 621 (see FIG. 1), feeding rollers 65 and 65, an upper guide member 36, and a lower guide. And a member 37.

  The lower guide member 37 is formed to extend vertically toward the chute 31. The lower guide member 37 includes a guide member main body 371 and a cover 372 detachably provided on the front surface 371a of the guide member main body 371.

  The guide member main body 371 is made of metal. The guide member body 371 is formed to extend vertically toward the chute body 311. Two grooves 661b are provided side by side on the front surface 371a side of the guide member main body 371.

  The cover 372 is made of acrylic. The cover 372 is formed in a flat plate shape so as to cover all the two grooves 661b of the guide member main body 371 from the front. As a result, the lower guide member 37 has two passages 678 that are the same as those in the first embodiment, by the cover 372 and the two grooves 661b.

  On the other hand, the upper guide member 36 is formed to extend vertically toward the lower guide member 37. The upper guide member 36 includes a guide member main body 361 and a cover 362 detachably provided on the front surface 361a of the guide member main body 361.

  The guide member main body 361 is made of metal. The guide member main body 361 is formed to extend vertically toward the guide member main body 371 of the lower guide member 37. Two grooves 661b are provided side by side on the front surface 361a side of the guide member main body 361.

  The cover 362 is made of acrylic. The cover 362 is formed in a flat plate shape so as to cover the entire lower part of the guide member main body 361 from the front. As a result, in the upper guide member 36, two passages 668 that are the same as those in the first embodiment are formed by the cover 362 and the two grooves 671b.

  In this configuration, the procedure for packaging the sheet to be packaged 152a will be described. The operator turns on the control device. Then, as shown to Fig.8 (a), the packaging materials 102a and 102a are drawn | fed out from the packaging material roll outside a figure, and are conveyed to the 2nd guide rollers 53 and 53. FIG. Further, the packaging materials 102a and 102a are conveyed vertically downward while facing each other with the second guide rollers 53 and 53 as a boundary.

  On the other hand, the original sheet 152 to be wrapped is fed from a roll of unwrapped sheet by unrolling rollers 65 and 65. The unwrapped sheet material 152 that has been fed passes through the upper guide member 36, the feeding rollers 65 and 65, and the lower guide member 37 in this order, and is inserted into the passage 618 of the chute 31.

  Then, as shown in FIG. 8B, when the packaging materials 102a and 102a being conveyed reach the joining position A, the rear cutter 632 moves from the normal position to the cutting position D, and the front cutter 631 cuts the raw sheet 152 to be packaged. Thereby, the packaged sheet 152a is formed. This packaged sheet 152a naturally falls through the passage 618 of the chute 31, and is supplied between the packaging materials 102a and 102a in a state where the lower peripheral edge portion 102b is attached.

  Next, both the packaging materials 102a and 102a supplied with the packaging sheet 152a are joined together by the heat sealer 70 and conveyed downward. Thereby, the packaging body 500 is manufactured in a state of being connected in two horizontal rows (see FIG. 7). Next, as for these package bodies 500, a connection part is parted with the said slitter. Thereby, the packaging body 500 is completed in the state connected to the vertical line.

  Here, in the present embodiment, the chute 31 has the same passage 618 as the chute 61 of the first embodiment. For this reason, even if the packaged sheet 152a is lightweight, the packaged sheet 152a is restricted from shaking when falling down the passage 618. Supplied in.

  Therefore, the packaged sheet 152a is not bent at the time of sealing, and thus the completed package 500 can be used as a product. Therefore, in the sheet packaging machine 300 of the present embodiment, it can also be used for packaging a lightweight sheet 152a. Further, in the sheet packaging machine 300 of the present embodiment, since the passage 618 is simply configured, the manufacturing cost can be suppressed.

  Moreover, in the sheet packaging machine 300 of this Embodiment, the to-be-packaged sheet 152a was supplied in the packaging bag 120 by which the lower side was united. Thereby, the opening area of the packaging bag 120 at the time of supply of the to-be-packaged sheet 152a becomes large. For this reason, the sheet packaging machine 300 can reliably supply the packaged sheet 152a into the packaging bag 120 in the same direction as the packaging bag 120. Therefore, in the sheet packaging machine 300 of the present embodiment, it is possible to improve the supply property of the sheet 152a.

  In the first embodiment and the second embodiment, the packaging material conveying means is constituted by three types of rollers 51, 52, 52, 53 and a heat sealer. However, the packaging material conveying means does not necessarily need to be composed of these members.

  That is, if the packaging material conveying means is configured to convey the packaging materials 102a and 102a from the front and rear sides of the chute toward the chute, and further convey the packaging material 102a and 102a vertically downward while facing the chute. good. By configuring the packaging material conveying means in this way, the opening area of the packaging bag 120 at the time of supplying the packaged sheet 152a is widened, so that the sheet packaging machine can improve the supply ability of the sheet 152a.

  Further, in the sheet packaging machine 300 of the present embodiment, the chute 31 is constituted by the chute body 311 and the cover 312. For this reason, when manufacturing the chute 31, if the side surface 311a side of the chute body 311 is processed to form the groove 311b, the passage 618 can be formed. Therefore, in the sheet packaging machine 300 of the present embodiment, the work for forming the passage 618 is facilitated, and thus the manufacturing efficiency can be increased.

  Furthermore, in the sheet packaging machine 300 of the present embodiment, the cover 312 of the chute 31 is made of acrylic. Thereby, since the passage 618 of the chute 31 can be seen from the front, the operator can easily confirm the packaged sheet 152a falling from the passage 618 from the outside.

  Furthermore, in the sheet packaging machine 300 according to the present embodiment, the cover 312 is detachably provided on the chute body 311. As a result, when the packaged sheet 152 a is caught in the passage 618 of the chute 31, the operator can remove the sheet 152 a by removing the cover 312. Therefore, in the sheet packaging machine 300 of the present embodiment, the removal processability of the sheet 152a can be improved.

  Further, in the sheet packaging machine 300 according to the present embodiment, when one of the cover 312 or the chute body 311 becomes unusable due to damage or the like, the whole is not replaced, and the unusable one is removed and replaced. Because it is good, running costs can be reduced.

  In the first embodiment and the second embodiment, the cover that is a part of the peripheral wall constituting the passage 618 is formed from acrylic. However, if the passage 618 is visible from the side, glass or the like can be used. You may form from other transparent materials. Further, both the cover and the chute body may be formed of a transparent material.

  On the other hand, in the sheet packaging machine 300 according to the present embodiment, both the guide members 36 and 37 allow the original sheet 152 to be packaged to stand in the same direction as the packaging materials 102a and 102a in the passage 618 of the chute 31. It was made to insert. Thereby, in this sheet packaging machine 300, since the cutting efficiency of the to-be-wrapped sheet original fabric 152 increases, the supply property of the sheet | seat 152a can be improved.

  Further, both guide members 36 and 37 are configured in the same manner as the chute 31 because they have the same passages 668 and 678 as the passage 618 of the chute 31. Therefore, in the sheet packaging machine 300 of the present embodiment, it is possible to reduce the number of parts at the time of manufacturing, so that the manufacturing cost can be suppressed.

  Furthermore, in the sheet packaging machine 300 according to the present embodiment, the upper and lower guide members 36 and 37 are configured in the same manner as the chute 31, thereby improving the removal processability of the original sheet 152 and the running cost. Can be further suppressed.

  Further, in the sheet packaging machine 300 of the present embodiment, as shown in FIG. 8, the material to be wrapped 152 is inserted into the passage 618 of the chute 31 to a predetermined length and then cut. Therefore, the sheet packaging machine 300 can surely drop the packaged sheet 152a into the passage 618, so that the supply of the sheet 152a can be improved.

  In the case of a two-row system that supplies two sheets of packaging sheets 152a at a time, like the sheet supply device 360 of the present embodiment, the difference in start of dropping of the two sheets of packaging sheets 152a that have been cut. Therefore, the stopper 64 does not necessarily have to be provided as in the sheet supply device 60 of the first embodiment. On the other hand, if the stopper 64 is provided in this sheet packaging machine 300, the air resistance with respect to the to-be-wrapped sheet 152a is further suppressed. Therefore, in the sheet packaging machine in this case, the supply property of the sheet 152a can be improved as compared with the sheet packaging machine 300 of the present embodiment.

  Further, in the chute of the embodiment, the passage 618 is formed so that the cross section thereof has the same shape as the cross section of the packaged sheet 152a. However, the chute passage may be formed so that a gap is opened between the periphery of the sheet 152a to be packaged that starts dropping from the state of standing in the same direction as the packaging bag 120 and the inner wall surface of the passage. The shape of the surface may not be limited to the shape described in the embodiment.

  On the other hand, the chute passage may be configured to start at least from the state of standing in the same direction as the packaging bag 120 and to guide into the packaging bag while restricting shaking during dropping. For example, a support means (such as a protrusion or a U-shaped member) that slidably supports the package sheet 152a is provided on the entire inner wall surface 618b (see FIGS. 3 and 6) of the passage 618 to form the passage. Also good. The passage in this case has an increased regulation force that regulates the shaking of the packaging sheet 152a that is falling. Therefore, the sheet packaging machine provided with this chute can reliably supply the sheet 152a into the packaging bag in the same direction as the packaging bag, so that the supply of the sheet 152a can be further enhanced.

  In addition, the chute according to the embodiment is composed of a chute body and a cover. However, since the chute only needs to have at least a passage 618 for naturally dropping the packaged sheet 152a, the chute may be formed of a cylindrical member. The chute in this case is formed by forming at least a part of the peripheral wall forming the passage 618 with a transparent material, or by providing an opening for communicating the passage 618 and the outside within a range in which the packaged sheet 152a can fall. The same effects as in the embodiment can be obtained.

  In the embodiment, the present invention is applied to a two-row sheet supply device 360 that supplies two sheets 152a to be packaged at a time or a four-row sheet supply device 60 that supplies four sheets at a time. explained. However, the present invention may be applied to a multi-row type sheet supply device that supplies a large number of sheets 152a at a time or a single-row type sheet supply device that supplies only one sheet at a time.

  In the embodiment, the case where the packaging sheet 152a is automatically supplied to the packaging bag 120 has been described. However, when the packaging sheet 152a is manually supplied to the packaging bag 120, only the chute may be used. Moreover, the packaging bag should just be a thing of the state which the upper end opened at the time of supply of the to-be-packaged sheet 152a. For example, at the time of supply of the sheet 152a to be packaged, it may be in a state in which the peripheral portions 102b and 102b of the three sides (left and right sides and lower side) of the packaging materials 102a and 102a are previously joined. And according to the state of a packaging bag, the same effect as the effect demonstrated by embodiment can be acquired by comprising the chute | shoot of this invention, a sheet supply apparatus, and a sheet packaging machine.

  As described above, the chute, the sheet supply apparatus, and the sheet packaging machine of the present invention can be used for packaging lightweight sheets, and can be sufficiently used in this technical field.

It is a schematic diagram of the sheet packaging machine which shows the 1st Embodiment of this invention. It is a principal part perspective view of the sheet packaging machine which shows the embodiment. It is PP sectional drawing of FIG. It is QQ sectional drawing and RR sectional drawing of FIG. It is a figure which shows the packaging procedure of the to-be-packaged sheet in the embodiment. It is a schematic diagram which shows the to-be-packaged sheet which is dropping the channel | path in the same embodiment. It is a principal part perspective view of the sheet packaging machine which shows the 2nd Embodiment of this invention. It is a figure which shows the packaging procedure of the to-be-packaged sheet in the embodiment.

DESCRIPTION OF SYMBOLS 1 Sheet packaging machine 7 Heat sealer 31 Chute 36 Upper guide member 37 Lower guide member 50 Packaging device 51 First guide roller 52 Feeding roller 53 Second guide roller 60 Sheet supply device 61 Chute 64 Stopper 65 Feeding roller 66 Upper guide Member 67 Lower guide member 102a Packaging material 102b Peripheral portion 120 Packaging bag 152 Original sheet to be packaged 152a Original sheet 311 Chute body 312 Cover 350 Packaging device 360 Sheet supply device 611 Chute body 611b Groove 611c Screw hole 612 Cover 613 Cover 614 Cover 616 Screw hole 617 Screw 618 Passage 618a Clearance 618b Inner wall surface 619b Opening 621 Guide roller D Cutting position

Claims (12)

In a chute provided with a passage for naturally dropping a sheet to be wrapped in a packaging bag with an upper end opened at least,
A chute body having a groove vertically penetrating into the packaging bag;
A cover provided on the chute body covering the groove from the side,
The passage and the groove constitute the passage,
The passage is formed so that a gap is opened between the periphery of the packaged sheet and the inner wall surface of the passage, and the packaged sheet that has started to fall from a state of standing in the same direction as the packaging bag. The flow of the surrounding air is set to be opposite to the falling direction of the packaged sheet, the air resistance of the packaged sheet being dropped is suppressed, and the swinging of the packaged sheet is controlled while being shaken. the chute, characterized in that the guide in the same direction as the packaging bag up to the packaging bag. The chute according to claim 1, wherein the passage is configured to be visible from a side. The chute according to claim 2, wherein at least a part of a wall portion of the peripheral wall forming the passage is formed of a transparent material, and the passage is configured to be visible from the side by the transparent material. The peripheral wall forming the passage is provided with an opening communicating the passage and the outside in a range where the packaged sheet can fall, and the passage is configured to be visible from the side by the opening. The shoot according to claim 2, wherein: The chute according to any one of claims 1 to 4, wherein the cover is detachably provided on the chute body. In a sheet supply apparatus for supplying a sheet to be packaged in a packaging bag having at least an upper end opened,
A sheet feeding apparatus comprising the chute according to claim 1. The sheet feeding device is
The shoot;
Into the chute passage, the packaged sheet original fabric conveying means for inserting and conveying the packaged sheet original fabric in an upright state, and
Cutting means for cutting the raw sheet to be packaged inserted into the passage to a predetermined length in the width direction above the passage to form the packaged sheet;
The sheet feeding apparatus according to claim 6, further comprising: The packaged sheet original fabric conveying means includes guide means for inserting the packaged sheet original fabric into the passage of the chute above the cutting position of the packaged sheet original fabric. The sheet supply device according to claim 7, wherein the sheet supply device is configured by a member having a passage having the same configuration as that of the sheet. 9. The sheet feeding apparatus according to claim 8, wherein the member constituting the guide means is configured similarly to the chute provided together. The sheet according to any one of claims 6 to 9, further comprising a stopper that temporarily blocks the passage of the chute and temporarily stops the sheet to be packaged in a falling state. Feeding device. In a sheet packaging machine that supplies and wraps a sheet to be packaged in a packaging bag with at least the upper end opened,
A sheet packaging machine comprising the sheet supply device according to any one of claims 6 to 10. The sheet packaging machine has a packaging device for packaging the packaged sheet supplied from the sheet supply device,
A pair of packaging materials constituting the packaging bag is conveyed toward the chute from the front and rear sides of the chute constituting the sheet feeding device, and further conveyed vertically downward while facing the lower side of the chute. Packaging material conveying means for causing
While comprising a joining means for joining the peripheral portions of the pair of packaging materials being transported vertically downward from the lower side,
The sheet supply device is configured to supply the packaged sheet between the pair of packaging materials in a state where the lower peripheral edge portions of the pair of packaging materials are bonded together. The sheet packaging machine according to claim 11.

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